CN103856309A - Method and device for allocating sounding reference signal resources of collaborative cells - Google Patents
Method and device for allocating sounding reference signal resources of collaborative cells Download PDFInfo
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- CN103856309A CN103856309A CN201210521505.3A CN201210521505A CN103856309A CN 103856309 A CN103856309 A CN 103856309A CN 201210521505 A CN201210521505 A CN 201210521505A CN 103856309 A CN103856309 A CN 103856309A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0058—Allocation criteria
- H04L5/0073—Allocation arrangements that take into account other cell interferences
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
- H04L5/0035—Resource allocation in a cooperative multipoint environment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0078—Timing of allocation
- H04L5/008—Timing of allocation once only, on installation
Abstract
The invention discloses a method for allocating sounding reference signal resources of collaborative cells. The method comprises the steps that all the cells are divided into different cell sets; the initiative time domain resource allocation sequence of the SRS of each cell set is determined; according to the state information of user terminals, a cell SRS resource grouping strategy is determined; according to the initiative time domain resource allocation sequence of the SRSs and the SRS resource grouping strategy, the SRS resources are allocated to the user terminals having an access to each cell. According to the method, the signaling interaction of the collaborative cells in a CoMP can be reduced, meanwhile, regularity is achieved in the SRS resource distribution process, interference between the cells and in the cells can be effectively restrained, the spectral efficiency of a system can be improved, and especially the spectral efficiency of the edge users of the cells can be improved.
Description
Technical field
The present invention relates to mobile communication technology field, particularly relate to a kind of sounding reference signal resource collocation method and device of cooperation district.
Background technology
(the ITU of International Telecommunications Union, International Telecommunications Union) to next generation mobile communication system IMT-Advanced(International Mobile Telecommunications-Advancd, IMT-Advanced) performance very harsh requirement has been proposed, such as maximum system transmission bandwidth reaches 100MHz, the peak rate of up-downgoing transfer of data need to reach 1G bps and 500M bps; And system average spectral efficiency (ase) especially edge spectrum efficiency is proposed to very high demand.In order to meet the requirement of the new system of IMT-Advanced, (the 3GPP of 3G (Third Generation) Moblie standardization body, The 3rdGeneration Partnership Project) be long-term evolution upgrading (LTE-Advanced in its mobile cellular communication system of future generation, Long Term Evolution Advanced) propose employing multi-point cooperative transmission (CoMP, Co-ordinated Multi-PointTransmission) technology in system and improved the performance of system.Multi-point cooperative transmission technology is the multiple transfer points that separate on geographical position, and collaborative participation is the transfer of data of a terminal or combines the data that receive a terminal transmission.The multiple transfer points that participate in cooperation are often referred to the base station of different districts.
Detection reference signal (SRS, Sounding Reference Signal) is the signal that is used for measuring uplink signal-channel quality between a kind of user terminal (UE, User Equipment) and evolved base station (eNB, evolved Node B).In LTE system, the parameters such as bandwidth, frequency domain position, sequence cyclic shift, cycle and the subframe skew that UE specifies according to base station, timing sends SRS on last symbol that sends subframe.For FDD(Frequency Division Duplexing, Frequency Division Duplexing (FDD)) system, eNB measures the up channel condition information of UE according to the SRS receiving, and carries out the operations such as the scheduling of frequency domain selectivity, closed-loop power control according to uplink signal-channel quality.For TDD(Time Division Duplexing, time division duplex) system, can also utilize up-downgoing channel reciprocity, carry out the descending operation such as scheduling or cooperative scheduling.
In the application of CoMP, the community that participates in cooperation all needs to obtain the channel condition information of terminal to self community.Therefore, all cooperation cell all need correctly to receive the SRS that UE sends.Therefore, how reasonably to distribute SRS resource, make the SRS signal of minizone disturb minimum just to seem extremely important.
In the prior art, the distribution method that each community adopts is often the same, can cause like this SRS signal of minizone to have severe jamming, causes that measuring result error is very large, finally makes C
othe performance of MP does not reach expection.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of sounding reference signal resource collocation method and device of cooperation district, has the problem of severe jamming in order to solve SRS signal between prior art small area.
For solving the problems of the technologies described above, on the one hand, the invention provides a kind of sounding reference signal resource collocation method of cooperation district, comprising:
All communities are divided into different cell set;
Determine the initial time-domain resource configuration sequence of detection reference signal SRS of each cell set;
According to the state information of user terminal, determine community SRS resource grouping strategy;
According to the initial time-domain resource configuration sequence of described SRS and SRS resource grouping strategy, to accessing the user terminal configuration SRS resource in each community.
Further, in the principle of same cell set, all communities are not divided into different cell set according to neighbor cell.
Further, determine the initial time-domain resource configuration sequence of detection reference signal SRS of each cell set, specifically comprise:
According to SRS sub-frame configuration, within predetermined fiducial time, add up SRS number of symbols, obtaining SRS number of symbols is N;
According to described SRS number of symbols N, distribute the initial time-domain resource of corresponding SRS for each cell set, determine the time-domain resource configuration sequence that each cell set SRS is initial.
Further, according to the state information of user terminal, determine community SRS resource grouping strategy, specifically comprise:
Each SRS time-domain resource is divided into S group, wherein, S=2M, M is the ratio of the SRS bandwidth of community SRS bandwidth and user terminal; Different frequency divisions, the corresponding total code tree set of comb point resource are labeled as to Φ, Φ={ Z is integer for k ∈ Z, 0≤k≤S-1 };
In the time that the state information of user terminal comprises x kind, all corresponding code tree subset GroupAi of each user terminal state information, GroupAi={k|mod (k, x)=i}, i ∈ (0,1, ..., x-1), wherein, GroupAi={k|mod (k, x)=i} represents the set that k is i divided by x remainder.
Further, to accessing the user terminal configuration SRS resource in each community, specifically comprise:
In the time that user terminal is set up initial connection, the time-domain resource configuration sequence initial according to SRS corresponding to this user terminal affiliated subdistrict, and GroupA0 > GroupA1 > GroupA2 > ... > GroupA(X-1) initial frequency domain resource order, for user terminal distributes initial SRS resource.
Further, to accessing the user terminal configuration SRS resource in each community, specifically comprise:
When obtaining after the state information of user terminal, or after user's state information changes, obtain the up-to-date state information i of user terminal;
According to the up-to-date state information i of user terminal, be the user terminal configuration resource GroupAi of correspondence with it; If GroupAi does not have idling-resource, be user terminal configuration SRS resource according to the priority orders of frequency domain resource.
Further, after accessing the user terminal configuration SRS resource in each community, also comprise:
In setting-up time, the user terminal number that accesses each community is repeatedly added up, and obtained the average user number of terminals of each community of access;
When described average user number of terminals is less than the maximum orthogonality user terminal number that system is supported, and can not be orthogonal between the SRS resource community of having distributed for user terminal, according to the initial time-domain resource configuration sequence of described SRS, the SRS resource of having distributed is reconfigured.
On the other hand, the present invention also provides a kind of sounding reference signal resource inking device of cooperation district, comprising:
Grouped element, for being divided into different cell set by all communities;
Initial time domain order determining unit, for determining the initial time-domain resource configuration sequence of detection reference signal SRS of each cell set;
SRS resource grouping strategy determining unit, for according to the state information of user terminal, determines community SRS resource grouping strategy;
SRS resource configuration unit, for according to the initial time-domain resource configuration sequence of described SRS and SRS resource grouping strategy, configures SRS resource to the user terminal accessing in each community.
Further, described grouped element is not divided into different cell set in the principle of same cell set by all communities according to neighbor cell.
Further, described initial time domain order determining unit specifically for:
According to SRS sub-frame configuration, within predetermined fiducial time, add up SRS number of symbols, obtaining SRS number of symbols is N;
According to described SRS number of symbols N, distribute the initial time-domain resource of corresponding SRS for each cell set, determine the time-domain resource configuration sequence that each cell set SRS is initial.
Further, described SRS resource grouping strategy determining unit specifically for:
Each SRS time-domain resource has been divided into S group, wherein, S=2M, M is the ratio of the SRS bandwidth of community SRS bandwidth and user terminal; Different frequency divisions, the corresponding total code tree set of comb point resource are labeled as to Φ, Φ={ Z is integer for k ∈ Z, 0≤k≤S-1 };
In the time that the state information of user terminal comprises x kind, all corresponding code tree subset GroupAi of each user terminal state information, GroupAi={k|mod (k, x)=i}, i ∈ (0,1, ..., x-1), wherein, GroupAi={k|mod (k, x)=i} represents the set that k is i divided by x remainder.
Further, described SRS resource configuration unit specifically for:
In the time that user terminal is set up initial connection, the time-domain resource configuration sequence initial according to SRS corresponding to this user terminal affiliated subdistrict, and GroupA0 > GroupA1 > GroupA2 > ... > GroupA(X-1) initial frequency domain resource order, for user terminal distributes initial SRS resource.
Further, described SRS resource configuration unit specifically for:
When obtaining after the state information of user terminal, or after user's state information changes, obtain the up-to-date state information i of user terminal;
According to the up-to-date state information i of user terminal, be the user terminal configuration resource GroupAi of correspondence with it; If GroupAi does not have idling-resource, be user terminal configuration SRS resource according to the priority orders of frequency domain resource.
Further, described device also comprises:
SRS resource reconfigures unit, in setting-up time, the user terminal number that accesses each community is repeatedly added up, and is obtained the average user number of terminals of each community of access; When described average user number of terminals is less than the maximum orthogonality user terminal number that system is supported, and can not be orthogonal between the SRS resource community of having distributed for user terminal, according to the initial time-domain resource configuration sequence of described SRS, the SRS resource of having distributed is reconfigured.
Beneficial effect of the present invention is as follows:
The present invention can reduce the Signalling exchange of each cooperation district in CoMP, simultaneously divides timing to have regularity in SRS resource, can effectively suppress the interference in minizone, community, and the spectrum efficiency of elevator system particularly improves the spectrum efficiency of Cell Edge User.
Brief description of the drawings
Fig. 1 is the flow chart of the sounding reference signal resource collocation method of a kind of cooperation district in the embodiment of the present invention;
Fig. 2 is the schematic diagram after dividing into groups in system group network in the embodiment of the present invention;
Fig. 3 is SRS time-domain resource configuration schematic diagram in embodiment of the present invention small area;
Fig. 4 is the SRS primary sign configuration schematic diagram of each cell set in the embodiment of the present invention;
Fig. 5 is cooperation district UE SRS initial resource configuration schematic diagram in the embodiment of the present invention;
Fig. 6 is that in the embodiment of the present invention, cooperation district is the SRS resource schematic diagram that UE reshuffles according to the state information of UE;
Fig. 7 is the distribution schematic diagram before the adjustment of cooperation district UE SRS resource-adaptive in the embodiment of the present invention;
Fig. 8 is the distribution schematic diagram after the adjustment of cooperation district UE SRS resource-adaptive in the embodiment of the present invention;
Fig. 9 is the structural representation of the sounding reference signal resource inking device of a kind of cooperation district in the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, does not limit the present invention.
As shown in Figure 1, the embodiment of the present invention relates to a kind of sounding reference signal resource collocation method of cooperation district, comprising:
Step S101, is divided into different cell set by all communities;
In this step, according to system group network mode, by all little different cell set of many groups that are distinguished in system; Distribution method can be any means, still, in order more effectively to suppress the interference of minizone, does not preferentially divide into groups in the principle of same cell set according to neighbor cell.For example, as shown in Figure 2, in Fig. 2, community 0 is cell set 1, and community 1,3,5 is a cell set 2, and community 2,4,6 is a cell set 3, and each cell set has identical distribution method.
Step S102, determines the initial time-domain resource configuration sequence of detection reference signal SRS of each cell set;
In this step, according to SRS sub-frame configuration, add up SRS number of symbols within predetermined fiducial time, obtaining SRS number of symbols is N; In TDD system, community SRS sub-frame configuration index is 0, and be 10ms for example predetermined fiducial time, wherein comprising N=4 SRS symbol, as shown in Figure 3;
The SRS symbolic number N obtaining according to statistics, distributes the initial time-domain resource of corresponding SRS for each cell set, determines the time-domain resource order that each cell set SRS distributes;
Be followed successively by each group according to the order of SRS symbol (for example, by 0 ~ N-1) and distribute the initial time-domain resource of SRS, determine the SRS time-domain resource order of each cell set.For example, making the initial time-domain resource of SRS of cell set 1 correspondence is symbol 0, and the initial time-domain resource of SRS of cell set 2 correspondences is symbol 1, and the initial time-domain resource of SRS of cell set 3 correspondences is symbol 2, specifically as shown in Figure 4 (the present embodiment N=4).The time-division order of each cell set is respectively: the time-division order of cell set 1 for [0,1,2 ..., N-1], time-division of cell set 2 order be [1,, 2 ..., N-1,0], time-division of cell set 3 order be [2 ..., N-1,0,1].
Step S103, according to the state information of user terminal, determines community SRS resource grouping strategy;
In this step, according to the SRS band width configuration of community and UE SRS band width configuration, the frequency domain resource of SRS symbol is divided into M section, that is: can obtains M by community SRS bandwidth divided by UE SRS bandwidth.Each SRS time-domain resource has been divided into S(SrsTreeNum) group (S=2M), different frequency divisions, the corresponding total code tree set of comb (Comb) point resource are labeled as Φ, and Φ={ wherein, Z is integer for k ∈ Z, 0≤k≤S-1; For example, community SRS bandwidth is 96RB, UE SRS band width configuration is 24RB, on each SRS symbol, frequency domain resource has been divided into 4 sections, by frequency division, Comb divide, code point can calculate each SRS time-domain resource and be divided into 8 groups, different frequency divisions, comb (Comb) point total code tree set of resource correspondence are labeled as Φ, Φ={ k ∈ Z, 0≤k≤8-1, Z is integer };
According to user state information, determine community SRS resource grouping strategy.If user's state information comprises x kind, all corresponding code tree subset GroupAi of each user terminal state information, the code tree subset of distributing for certain state information is labeled as GroupAi, GroupAi={k|mod (k, x)=i}, i ∈ (0,1 ..., x-1), wherein, GroupAi={k|mod (k, x)=i represents the set that k is i divided by x remainder.
User state information comprises: user property and field intensity information; Wherein, user property comprises central user or edge customer; Field intensity information comprises that finger user power is limited or not limited; User's state information comprises four (x=4) kind state.Determine corresponding code tree subset according to user state information: code tree subset mark corresponding to the edge customer in the not limited situation of user power and central user is designated as respectively GroupA0 and GroupA1; Code tree subset mark corresponding to the edge customer in the limited situation of user power and central user is designated as respectively GroupA2 and GroupA3.As k(k=0,1,2,3,4,5,6,7; ), when x=4, can draw GroupA0={k|mod (k by calculating, x)=0}={0,4}, GroupA1={k|mod (k, x)=1}={1,5}, GroupA2={k|mod (k, x)=2}={2,6}, GroupA3={k|mod (k, x)=3}={3,7}.
Step S104, according to the initial time-domain resource configuration sequence of described SRS and SRS resource grouping strategy, to accessing the user terminal configuration SRS resource in each community.
In this step, when user terminal is by RRC(Radio Resource Control, radio resource control) set up while initially connection, the time-domain resource configuration sequence initial according to SRS corresponding to this user terminal affiliated subdistrict, and GroupA0 > GroupA1 > GroupA2 > ... > GroupA(X-1) initial frequency domain resource order, for user terminal distributes initial SRS resource.
From 3 cell set, look for respectively 1 community, i.e. community 0, community 1, community 2; When at point at the same time, in San Ge community, have respectively 1 user who initially connects foundation by RRC, the each UE in community 0, community 1, community 2 is the initial SRS resource of user assignment according to the order of GroupA0 > GroupA1 > GroupA2 > GroupA3.Therefore, 1 initial access UE that 1 initial access UE that 1 of community 0 initial access UE is distributed in GroupA0 position, the community 1 of SRS symbol 0 is distributed in the GroupA0 of SRS symbol 1, community 2 is distributed in the position of the GroupA0 of SRS symbol 2, specifically as shown in Figure 5.
When obtaining after user's state information, or after user's state information changes, be that it distributes suitable resource according to up-to-date user state information:
After user terminal is set up initial connection by RRC, obtain after user's state information, or, by obtaining polytype reporting information such as A3 event, path loss state, when discovery user's state information is changed into another kind state information by certain state information, according to the up-to-date user's who determines state information i, be the user terminal configuration resource GroupAi of correspondence with it; If GroupAi does not have idling-resource, be user terminal configuration SRS resource according to the priority orders of frequency domain resource.Be for example GroupA0 > GroupA1 > GroupA3 > GroupA2 > according to priority orders ... > GroupA(x-1) > GroupA(x-2) be user terminal configuration SRS resource.Wherein, the allocation order of SRS resource is that frequency division, Comb divide, code divides, the time-division.
In above-mentioned steps, the frequency domain resource priority orders of mentioning is only for example a kind of; In real process, need to determine according to predefined state information.
When 3 communities obtain respectively the state information of UE in community: it is edge customer that community 0 obtains UE by measurement, and power is not limited; Community 1 obtains user centered by UE by measurement, and power limited; Community 2 obtains user centered by UE by measurement, and power is not limited; 3 communities need to be that UE reconfigures SRS resource according to principle below according to the UE state information of obtaining: for the edge customer in the not limited situation of user power, according to GroupA0 > GroupA1 > GroupA2 > GroupA3 arranged in order SRS resource; For the central user in the not limited situation of user power, according to GroupA1 > GroupA0 > GroupA3 > GroupA2 arranged in order SRS resource; For the edge customer in the limited situation of user power, according to GroupA2 > GroupA3 > GroupA0 > GroupA1 arranged in order SRS resource; For the central user in the limited situation of user power, according to GroupA3 > GroupA2 > GroupA1 > GroupA03 arranged in order SRS resource.Therefore the UE of community 0 is distributed in the GroupA1 position of SRS symbol 0, and the UE of community 1 is distributed in the GroupB2 position of SRS symbol 1, and the UE of community 3 is distributed in the GroupA2 position of SRS symbol 2, concrete distribution as shown in Figure 6.
In addition, the method for the embodiment of the present invention also comprises:
Step S105, in setting-up time, repeatedly adds up the user terminal number that accesses each community, and obtains the average user number of terminals of each community of access; When described average user number of terminals is less than the maximum orthogonality user terminal number that system is supported, and can not be orthogonal between the SRS resource community of having distributed for user terminal, according to the initial time-domain resource configuration sequence of described SRS, the SRS resource of having distributed is reconfigured.
In this step, when after predetermined timer expiry, number of users to access is added up, if in continuous repeatedly statistics, corresponding number of users is all no more than maximum orthogonality number of users, and the resource of having distributed for user can not ensure between community orthogonal, the resource of distribution is readjusted with the completely orthogonal resource in adjacent area on, adjust strategy according to mutually frequency division, the Comb on the same group divides, code divides, the order of time-division is carried out Resources allocation.Otherwise, do not carry out the adjustment of SRS resource.
For example, establish timer duration 200s, in timer duration, statistics number is 4 times, and the maximum orthogonality number of users of system support is 32.In the time of timer expiry, after the result of 4 times is averaged, the number of users of finding community 0 is 4, and community 1 is 7, and community 2 is 2, the access user of 3 community statistics is all less than 32, and the resource of having distributed can not ensure between community orthogonal, as shown in Figure 7, at this moment need to carry out in each community the resource of self adaptation adjustment SRS and distribute, adjust strategy according to mutually interior frequency division, Comb on the same group divides, code divides, the order of time-division is carried out Resources allocation, as shown in Figure 8.
In above step S103 ~ S105, the distribution that frequency division, the Comb mentioning divides, code divides is a kind of allocation order of recommendation; In real process, the order that frequency division, Comb divide, code divides can arbitrary disposition.
In addition, as shown in Figure 9, the embodiment of the present invention also relates to a kind of sounding reference signal resource inking device of cooperation district of realizing said method, comprising:
Grouped element 201, for being divided into different cell set by all communities;
Initial time domain order determining unit 202, for determining the initial time-domain resource configuration sequence of detection reference signal SRS of each cell set;
SRS resource grouping strategy determining unit 203, for according to the state information of user terminal, determines community SRS resource grouping strategy;
SRS resource configuration unit 204, for according to the initial time-domain resource configuration sequence of described SRS and SRS resource grouping strategy, configures SRS resource to the user terminal accessing in each community.
Wherein, described grouped element 201 is not divided into different cell set in the principle of same cell set by all communities according to neighbor cell.
Wherein, described initial time domain order determining unit 202 specifically for:
According to SRS sub-frame configuration, within predetermined fiducial time, add up SRS number of symbols, obtaining SRS number of symbols is N;
According to described SRS number of symbols N, distribute the initial time-domain resource of corresponding SRS for each cell set, determine the time-domain resource configuration sequence that each cell set SRS is initial.
Wherein, described SRS resource grouping strategy determining unit 203 specifically for:
Each SRS time-domain resource has been divided into S group, wherein, S=2M, M is the ratio of the SRS bandwidth of community SRS bandwidth and user terminal; Different frequency divisions, the corresponding total code tree set of comb point resource are labeled as to Φ, Φ={ Z is integer for k ∈ Z, 0≤k≤S-1 };
In the time that the state information of user terminal comprises x kind, all corresponding code tree subset GroupAi of each user terminal state information, GroupAi={k|mod (k, x)=i}, i ∈ (0,1, ..., x-1), wherein, GroupAi={k|mod (k, x)=i} represents the set that k is i divided by x remainder.
Wherein, the state information of user terminal comprises: user property and field intensity information; Wherein, user property comprises central user or edge customer; Field intensity information comprises that finger user power is limited or not limited; Determine corresponding code tree subset according to the state information of user terminal: code tree subset mark corresponding to the edge customer in the not limited situation of user terminal power and central user is designated as respectively GroupA0 and GroupA1; Code tree subset mark corresponding to the edge customer in user terminal power limited situation and central user is designated as respectively GroupA2 and GroupA3.
Wherein, described SRS resource configuration unit 204 specifically for:
In the time that user terminal is set up initial connection, the time-domain resource configuration sequence initial according to SRS corresponding to this user terminal affiliated subdistrict, and GroupA0 > GroupA1 > GroupA2 > ... > GroupA(X-1) initial frequency domain resource order, for user terminal distributes initial SRS resource.
Wherein, described SRS resource configuration unit 204 specifically for:
When obtaining after the state information of user terminal, or after user's state information changes, obtain the up-to-date state information i of user terminal;
According to the up-to-date state information i of user terminal, be the user terminal configuration resource GroupAi of correspondence with it; If GroupAi does not have idling-resource, be user terminal configuration SRS resource according to the priority orders of frequency domain resource.
Wherein, described device also comprises:
SRS resource reconfigures unit 205, in setting-up time, the user terminal number that accesses each community is repeatedly added up, and is obtained the average user number of terminals of each community of access; When described average user number of terminals is less than the maximum orthogonality user terminal number that system is supported, and can not be orthogonal between the SRS resource community of having distributed for user terminal, according to the initial time-domain resource configuration sequence of described SRS, the SRS resource of having distributed is reconfigured.
As can be seen from the above-described embodiment, the present invention has considered the situation of each community and adjacent area thereof, make between neighbor cell in time domain, to take different SRS symbols in the time distributing SRS resource, and the self adaptation adjustment distributing by SRS, ensure that, in the less situation of number of users, the SRS signal between neighbor cell is completely orthogonal; According to user property and user's field intensity information, user is divided into groups, avoided the interference between user SRS signal in community, thereby greatly improve the accuracy that SRS measures simultaneously; And the present invention can reduce the Signalling exchange of each cooperation district in CoMP, divide timing to there is regularity in SRS resource simultaneously, can effectively suppress the interference of minizone; The spectrum efficiency of final elevator system, particularly improves the spectrum efficiency of Cell Edge User.
Although be example object, the preferred embodiments of the present invention are disclosed, it is also possible those skilled in the art will recognize various improvement, increase and replacement, therefore, scope of the present invention should be not limited to above-described embodiment.
Claims (14)
1. a sounding reference signal resource collocation method for cooperation district, is characterized in that, comprising:
All communities are divided into different cell set;
Determine the initial time-domain resource configuration sequence of detection reference signal SRS of each cell set;
According to the state information of user terminal, determine community SRS resource grouping strategy;
According to the initial time-domain resource configuration sequence of described SRS and SRS resource grouping strategy, to accessing the user terminal configuration SRS resource in each community.
2. the sounding reference signal resource collocation method of cooperation district as claimed in claim 1, is characterized in that, in the principle of same cell set, all communities is not divided into different cell set according to neighbor cell.
3. the sounding reference signal resource collocation method of cooperation district as claimed in claim 2, is characterized in that, determines the initial time-domain resource configuration sequence of detection reference signal SRS of each cell set, specifically comprises:
According to SRS sub-frame configuration, within predetermined fiducial time, add up SRS number of symbols, obtaining SRS number of symbols is N;
According to described SRS number of symbols N, distribute the initial time-domain resource of corresponding SRS for each cell set, determine the time-domain resource configuration sequence that each cell set SRS is initial.
4. the sounding reference signal resource collocation method of the cooperation district as described in claim 1 or 3, is characterized in that, according to the state information of user terminal, determines community SRS resource grouping strategy, specifically comprises:
Each SRS time-domain resource is divided into S group, wherein, S=2M, M is the ratio of the SRS bandwidth of community SRS bandwidth and user terminal; Different frequency divisions, the corresponding total code tree set of comb point resource are labeled as to Φ, Φ={ Z is integer for k ∈ Z, 0≤k≤S-1 };
In the time that the state information of user terminal comprises x kind, all corresponding code tree subset GroupAi of each user terminal state information, GroupAi={k|mod (k, x)=i}, i ∈ (0,1, ..., x-1), wherein, GroupAi={k|mod (k, x)=i} represents the set that k is i divided by x remainder.
5. the sounding reference signal resource collocation method of cooperation district as claimed in claim 4, is characterized in that, to accessing the user terminal configuration SRS resource in each community, specifically comprises:
In the time that user terminal is set up initial connection, the time-domain resource configuration sequence initial according to SRS corresponding to this user terminal affiliated subdistrict, and GroupA0 > GroupA1 > GroupA2 > ... > GroupA(X-1) initial frequency domain resource order, for user terminal distributes initial SRS resource.
6. the sounding reference signal resource collocation method of cooperation district as claimed in claim 5, is characterized in that, to accessing the user terminal configuration SRS resource in each community, specifically comprises:
When obtaining after the state information of user terminal, or after user's state information changes, obtain the up-to-date state information i of user terminal;
According to the up-to-date state information i of user terminal, be the user terminal configuration resource GroupAi of correspondence with it; If GroupAi does not have idling-resource, be user terminal configuration SRS resource according to the priority orders of frequency domain resource.
7. the sounding reference signal resource collocation method of the cooperation district as described in claim 1,5 or 6, is characterized in that, after accessing the user terminal configuration SRS resource in each community, also comprises:
In setting-up time, the user terminal number that accesses each community is repeatedly added up, and obtained the average user number of terminals of each community of access;
When described average user number of terminals is less than the maximum orthogonality user terminal number that system is supported, and can not be orthogonal between the SRS resource community of having distributed for user terminal, according to the initial time-domain resource configuration sequence of described SRS, the SRS resource of having distributed is reconfigured.
8. a sounding reference signal resource inking device for cooperation district, is characterized in that, comprising:
Grouped element, for being divided into different cell set by all communities;
Initial time domain order determining unit, for determining the initial time-domain resource configuration sequence of detection reference signal SRS of each cell set;
SRS resource grouping strategy determining unit, for according to the state information of user terminal, determines community SRS resource grouping strategy;
SRS resource configuration unit, for according to the initial time-domain resource configuration sequence of described SRS and SRS resource grouping strategy, configures SRS resource to the user terminal accessing in each community.
9. the sounding reference signal resource inking device of cooperation district as claimed in claim 8, is characterized in that, described grouped element is not divided into different cell set in the principle of same cell set by all communities according to neighbor cell.
10. the sounding reference signal resource inking device of cooperation district as claimed in claim 9, is characterized in that, described initial time domain order determining unit specifically for:
According to SRS sub-frame configuration, within predetermined fiducial time, add up SRS number of symbols, obtaining SRS number of symbols is N;
According to described SRS number of symbols N, distribute the initial time-domain resource of corresponding SRS for each cell set, determine the time-domain resource configuration sequence that each cell set SRS is initial.
The sounding reference signal resource inking device of 11. cooperation districts as described in claim 8 or 10, is characterized in that, described SRS resource grouping strategy determining unit specifically for:
Each SRS time-domain resource has been divided into S group, wherein, S=2M, M is the ratio of the SRS bandwidth of community SRS bandwidth and user terminal; Different frequency divisions, the corresponding total code tree set of comb point resource are labeled as to Φ, Φ={ Z is integer for k ∈ Z, 0≤k≤S-1 };
In the time that the state information of user terminal comprises x kind, all corresponding code tree subset GroupAi of each user terminal state information, GroupAi={k|mod (k, x)=i}, i ∈ (0,1, ..., x-1), wherein, GroupAi={k|mod (k, x)=i} represents the set that k is i divided by x remainder.
The sounding reference signal resource inking device of 12. cooperation districts as claimed in claim 11, is characterized in that, described SRS resource configuration unit specifically for:
In the time that user terminal is set up initial connection, the time-domain resource configuration sequence initial according to SRS corresponding to this user terminal affiliated subdistrict, and GroupA0 > GroupA1 > GroupA2 > ... > GroupA(X-1) initial frequency domain resource order, for user terminal distributes initial SRS resource.
The sounding reference signal resource inking device of 13. cooperation districts as claimed in claim 12, is characterized in that, described SRS resource configuration unit specifically for:
When obtaining after the state information of user terminal, or after user's state information changes, obtain the up-to-date state information i of user terminal;
According to the up-to-date state information i of user terminal, be the user terminal configuration resource GroupAi of correspondence with it; If GroupAi does not have idling-resource, be user terminal configuration SRS resource according to the priority orders of frequency domain resource.
The sounding reference signal resource inking device of 14. cooperation districts as described in claim 8,12 or 13, is characterized in that, described device also comprises:
SRS resource reconfigures unit, in setting-up time, the user terminal number that accesses each community is repeatedly added up, and is obtained the average user number of terminals of each community of access; When described average user number of terminals is less than the maximum orthogonality user terminal number that system is supported, and can not be orthogonal between the SRS resource community of having distributed for user terminal, according to the initial time-domain resource configuration sequence of described SRS, the SRS resource of having distributed is reconfigured.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210521505.3A CN103856309B (en) | 2012-12-07 | 2012-12-07 | Method and device for allocating sounding reference signal resources of collaborative cells |
| JP2015545647A JP6050898B2 (en) | 2012-12-07 | 2013-10-12 | Sounding reference signal resource setting method and apparatus for cooperative cell |
| EP13861118.1A EP2916479B1 (en) | 2012-12-07 | 2013-10-12 | Method and apparatus for configuring srs resource for cooperating cells |
| PCT/CN2013/085126 WO2014086203A1 (en) | 2012-12-07 | 2013-10-12 | Method and apparatus for configuring srs resource for cooperating cells |
| US14/649,767 US9814039B2 (en) | 2012-12-07 | 2013-10-12 | Method and apparatus for configuring SRS resource for cooperating cells |
| HK16100620.0A HK1212830A1 (en) | 2012-12-07 | 2016-01-20 | Method and apparatus for configuring srs resource for cooperating cells |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210521505.3A CN103856309B (en) | 2012-12-07 | 2012-12-07 | Method and device for allocating sounding reference signal resources of collaborative cells |
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| CN103856309A true CN103856309A (en) | 2014-06-11 |
| CN103856309B CN103856309B (en) | 2017-05-10 |
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| CN201210521505.3A Expired - Fee Related CN103856309B (en) | 2012-12-07 | 2012-12-07 | Method and device for allocating sounding reference signal resources of collaborative cells |
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| US (1) | US9814039B2 (en) |
| EP (1) | EP2916479B1 (en) |
| JP (1) | JP6050898B2 (en) |
| CN (1) | CN103856309B (en) |
| HK (1) | HK1212830A1 (en) |
| WO (1) | WO2014086203A1 (en) |
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| CN105472745A (en) * | 2014-09-04 | 2016-04-06 | 北京三星通信技术研究有限公司 | Sounding reference signal resource allocation method and equipment |
| CN106793069A (en) * | 2016-11-28 | 2017-05-31 | 京信通信技术(广州)有限公司 | A kind of localization method and device |
| WO2018202217A1 (en) * | 2017-05-05 | 2018-11-08 | 中兴通讯股份有限公司 | Transmission parameter processing method and apparatus |
| CN108886397A (en) * | 2017-02-06 | 2018-11-23 | 联发科技股份有限公司 | For the determining mechanism with uplink beam management of wave beam reciprocity |
| CN110741694A (en) * | 2017-06-23 | 2020-01-31 | Oppo广东移动通信有限公司 | Wireless communication method and apparatus |
| CN110768768A (en) * | 2018-07-27 | 2020-02-07 | 上海华为技术有限公司 | Resource allocation method of sounding reference signal and communication device |
| CN112702791A (en) * | 2020-12-11 | 2021-04-23 | 杭州红岭通信息科技有限公司 | Resource allocation method for sounding reference signals under multiple BWPs (broadband remote access points) |
| CN114337966A (en) * | 2021-12-11 | 2022-04-12 | 京信网络系统股份有限公司 | Wireless resource allocation method, device, computer equipment and storage medium |
| WO2022151303A1 (en) * | 2021-01-15 | 2022-07-21 | Qualcomm Incorporated | Ue-assisted channel reconstruction based on partial spatial sounding |
| CN110741694B (en) * | 2017-06-23 | 2024-04-26 | Oppo广东移动通信有限公司 | Wireless communication method and device |
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| CN112702791A (en) * | 2020-12-11 | 2021-04-23 | 杭州红岭通信息科技有限公司 | Resource allocation method for sounding reference signals under multiple BWPs (broadband remote access points) |
| CN112702791B (en) * | 2020-12-11 | 2022-06-28 | 杭州红岭通信息科技有限公司 | Resource allocation method for sounding reference signals under multiple BWPs (broadband-random access protocols) |
| WO2022151303A1 (en) * | 2021-01-15 | 2022-07-21 | Qualcomm Incorporated | Ue-assisted channel reconstruction based on partial spatial sounding |
| CN114337966B (en) * | 2021-12-11 | 2023-08-29 | 京信网络系统股份有限公司 | Wireless resource allocation method, device, computer equipment and storage medium |
| CN114337966A (en) * | 2021-12-11 | 2022-04-12 | 京信网络系统股份有限公司 | Wireless resource allocation method, device, computer equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| US9814039B2 (en) | 2017-11-07 |
| US20150305027A1 (en) | 2015-10-22 |
| JP6050898B2 (en) | 2016-12-21 |
| EP2916479A1 (en) | 2015-09-09 |
| CN103856309B (en) | 2017-05-10 |
| WO2014086203A1 (en) | 2014-06-12 |
| JP2015536628A (en) | 2015-12-21 |
| HK1212830A1 (en) | 2016-06-17 |
| EP2916479B1 (en) | 2016-11-23 |
| EP2916479A4 (en) | 2015-11-04 |
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